Joining-equalizer for woodworking



w. JL KA'RM' IBE. JOINING EQUALIZER FOR WO'O'D WORKING,

APPLICATION FILED APE-x1131!1-920.

Patented D eclf27g 1921;...

INVENTOR. Mum/v J." A flgmeg.

ATTOR EY-5.

. J. KARMIRE.

JOINING EQUAUZER FOR wooowomuwe.

APPLICATION FILED APR-16,1920.

Patented Dec. 27,- 1921..

3 SHEETS-SHEET 2- INVENTOR. WILLIAM J AME/WEE.

ATTORNEYS.

w. J. KARMIRE. JOINING EQUALIZER FOR WOODWORKING. APPLICATION FILED AIR. I6! I920.

Patented Dec. 27, 1921.

3 SHEETS-SHEET 3- ATTORNEY.-5.

Pie i.

W'ILLIAIV; KARMIEE, OF SHELBYVILL E, INDIANA, ASSIGNOR' TO EDWARD A.

' SWAIN, OF SEELIBYVILLE, INDIANA. I i

JOIN iNG-EQUALIZER FOR WOOD' WORKING'.

icense.

Specification of Lettersratent.

Patented Dec. 27, 1921;

Application filed April 16, 1920. Serial No. 374,337.

of Shelbyville county'of Shelby, andState of Indiana, have invented a certain new and useful Joining-Equalizer 101' Woodworking;

and I do hereby declare that the following is a full, clear, and exact description thereof. reference being had to the accompanying drawings, in which like numerals refer to like parts.

This invention relates to the furniture art and in particular to means for forming and equalizing oints of wooden stock. The chief. object of the invention is to construct a furniture leg or the like of a main body portion and secure to the same suitable facing or panel portions by an improved joint.

The chief feature of the invention consists in machining the base stock in such a mannor that the facings to be secured thereto, when assembled and glued together, will-form a tight joint in an improved manner. Other features of the invention are embodied in a machine for fashioning the stock base, said machine including numerous combinations which are new in the art.

Themachine in particular an adaptation of a milling machine or planer to a woodworking art;

in the drawings Figure 1 is an elevational view of the machine in position to begin fashioning the stock base. Fig. 2 is a plan view showing the completed stock base in full lines and the original stock base in dotted lines before the same has been reduced to the full line outline bythe machine illus trated in Fig. 1. 3 is a plan view of the fashioned stock base with suitable side facings securec thereto and showing in particular the improved means for receiving the Fig. 2. The base 10 is provided with two projecting tenons 12 13 respectively and a slot or groove 14; the same being inparallel relation. As shown in Fig. 3 suitable facing portions 1 and 16 are respectively provided with mortise grooves 17 and 18, the same being adapted to receive the tenons 12 and13 respectively. The abutting edges 19 of the adjacent facing portions 15 and 16 form a close and equal joint, and when positioned in this manner .upon the base stock form with the groove 14: a suitable glue receiving slot 20 extending substantially parallel with said joint. In this manner, glue which has been exuded'from the adjacent joint surfaces between the members 16 and 10, and 10 and 15 audio respectively is received by the slot formed at the junctionof these three members 10, 15 and 16.

The means for forming the various slots 7 and tenons of the stock base 10 is shown best in'Fig. 4. In the drawings 21, indicates the bed of the machine similar to a planer or shaper, the same being provided with a reciprocatorily mounted carriage member 22, the same being adapted to support a head stock 23 and a tallstock 24. The head stock 23 carries the-stock supporting spindle 25, and the tail stock 24supp0rts the stock supporting spindle26 respectively. Asshown clearly in Fig. 1 the rearward portion of the spindle 26 is-cut away to form a rack portion 27, the same being slidably received by pinion member29. To the projecting p0rtion of theshaftBO, rigid with said pinion and by which the same is rotatably supported. is rigidly secured a weight supporting arm 31,- to which is secured, in an adjusted positiom the counterweight 32,'an-d which is rocked or rotated by the arm- 32 With the foregoing construction the counterweight 32 alwaysv maintains, through the pinion 29 and the rack 27,.the spindle 26 in engagement with the stool: 10 so as tomaintain pressure-upon and quickly secure the same between said last mentioned spindle and the spindle 25. I

To provide a greaterfrange of adjustability, the tail stock 24 is preferably formed s is provided with a longitudinally extending slot 4 adapted to receive a suitable tongue member 35 integral with the upper tail stock portion 24. 1e plate 33 is provided with a plurality of bolt receiving holes 36 in spaced relation with Gtlill other. plurality of bolt members 87 rigidly secure the tail stoclr 24 to the plate in any one of the adjusting positions.

The means for positioning thevstock between the so les 25 and 26 so that the latter may g1 p and hold the same in the squared position comprises a plurality of members as follows, and shown most clearly in Figs. 4 and o. A horizontal supporting bar member is slidably adjustable and lly supported at 41 upon the supporting bed 21. A pair of clamp members 42 are ad ustably secured in spaced relation with ach other by the bol s 48 upon the supportig rod 46. Supported by the clamp memare a pair of rock shafts 44 upon which sii'lar clamp members 45 are mounted.

rod members 46 are adjustably seto the clamp members 47: by means of Justing bolts 47. Upon the upper ends of the rods 46 is similarly secured a pair of clamp memb s 48, adjustably secured by of the snail bolls Five/tally supported thereby, and the brackets 50 is a second bar memberbl parallel to the supporting bar member 46. The bar member 51 extends inwardly t ward the machine and toward the stool; supporting spindle, and upon its outer end carries a positioning guide bracket, upwardly extending arm or stand arl 52 adjustably secured thereto by means of a bolt Means for locking the foregoing parallelogram comprises a pivoted lever 54 suitably connected to the parallelogram and counter-balanced bv the counter weight 155 which also maintains the parallelogram or positioning device in the inoperative posihown in 4, so that the forwardly g end of the rod 51 and the standard r. not interfere with the cutters operatupon the'stock. hen the parallelogram is operated by the lever 54 parts move from the f l line position shown in 4 to the d-tted position shown in the same figure. which moves the parts shown in the full line position in Fig. 5 to the dottedline position shown in the same figure. It will be understood that the stock may be positioned uponthe bar 51 so that one face thereof rests 7 upon the bar 51 and the adjacent face thereof scribed is duplicated so that, as shown in .Fig. 1, the stock 10 will be positioned exactly as desired so that when the spindles 25 and 26 engage the same said stock will be posi-i may be used instead of the standards 52, so

that irregularly shaped stocks 10 may be centered for the spindles to engage the same and these means are considered the full equivalent of the squaring means described. 7

After the stock has been positioned between the spindles by means of the paralleling device described, the carriage 22 is reciprocated across the bed 21 by means comprised as follows. Upon the under face of the carriage 22vis suitably secured a rack membr 55, and rotatably supportd by the bed 21 and meshing with the rack is a reversible driving pinion 56 rotatable by the shaft 57, the same carrying upon one of its outer ends a bevelpinion 58, the latter meshing with a similar pinion 59 carried by a vertical shaft 60. Upon the lower end of the shaft 60 is secured a bevel plate or gear 61 by which the carriage 22 .is reciprocated upon the bed 21, when meshing with either of the driving bevel pinions 62 and 63 rotatable by a shaft 64, the same carrying a pulley 65, whereby power is transmitted to the pinion 56. t will be understood that, as shown in Fig. 4, both driving pulleys 62 or 63 maybe outof mesh with the bevel gear 61, so that said carriage 22 will be stationary upon the bed 21. When the bevel pinion 62 is in mesh with the bevel gear 61, the carriage will move from one end of the bed to the other, and when the gear 61 is in mesh with the pinion 63, the carriage will move from the last mentioned end to the opposite end of the bed.

The means for, alternately engaging either of said pinions 62 and 63 with the driving gear 61 comprises a supporting means 66 by which the shaft 64 is pivotally supported, as well. as rotatably supported. course, be understood that instead of pivoting said pinions 62 and 63 into and out of mesh with gear 61, the same may be longitudinally slidable upon the shaft 64 and engageable alternately with the driving It will, of

gaging rocking member suitably secured to a tilting lever or rod 71, pivotally supported at 72 upon the frame 21. The outer end of the tilting rod or lever 71 extends substantially toward the center of the bed 21, and is provided with suitable engaging portions 7 3 by which the same may be normally tilted, when the operators foot is placed thereon, to engage pinion 62 with the gear 61. Similarly the shaft engaging-memher 7 5, see Figs. 1 and 6,.is suitably secured to a rocking lever 7 6 pivotally supported at 77 upon the bed 21. The opposite end of said rocking lever 7 6 is secured to a rod 177 which extends transversely of'the bed 21, and is rocked by means of a lever 78 suitably connected to the lever .79, pivotally supported at 80 to the bed 21 by means of a connecting rod 81. Thus when the lever 79 is depressed by the operators foot engaging thereon, the lever 78 actuates the transverse rod 177 and rocks the same to tilt the adjacent end of the, rocking lever 76 downwardly through the mechanism shown in Fig. 6. This raises the opposite end of said lever upwardly to place the bevel pinion 63 into engagement with the bevel gear 61, by tilting or rocking the shaft 64, which simultaneously disengages the pinion 62 from the bevel gear 61 before the pinion 63 engages therewith. With the foregoing the carriage will not be reciprocated in either direction until either one of said levers 7 3 or79 is normally actuated by the operator.

Means are herein provided for automatically disengaging the respective bevel gears 62 and 63 from the'gear 61, when the carriage is moved to the end of the desired vreciprocatory movement upon the bed 21. Said means comprise suitable stop or limitlugs 85, see Figs. 1, 6 and 7,f ositioned at one end of the bed 21, and a similar lug 86 positioned at the opposite end of said bed. In the present instance suitable supporting rods 87 and 88 respectively support the stop lugs and 86, to which the same are adjustably secured by means of suitable adjusting bolts 89. A pair of transversely extending rods 90 and 91 are respectively connected to the limit rods 87 and 88, and upon one end thereof are secured the tripping rods 92 and 93 respectively connected to, and operated by, the travel limit actuating lugs V 85 and 86 respectively. The end portions of said tripping rods are preferably curved outwardly and then backwardly toward the opposite end thereof to forma hook portion 9 1, the same adapted to engage one end of the respective tilting rods 95 and 96 for tilting the respective levers '79 and 71 in a direction opposite to that heretofore de scribed, so as to disengage the respective bevel gears 62 and 68 from engagement with the driving gear 61.

Positioned upon the frame 21 are a pair of latching members 97, the same being en- 96. The latching members 97 are held in engagement with the rods 95 and 96 by means of the spring members 99, and when eitherof said latching members 97 is in engagement with the notch 98, said rod will be maintained in an elevated position, which is the equivalent of the operator maintaining the actuating portion of the respective tilting lever 71 or .7 9 in a depressed position. Said latch will maintain the rod 95 or the rod 96, since only one will be in engagement at anytime, until the rod 95 or 96 is released from engagement with said latching member 97 by being actuated by the respective stop lugs through the hook por-' tion 9st on the tripping rods 92 or 98.

l i ith the foregoing mechanism the operator tilts the shaft 6-1 in the desired direction to engage the desired bevel pinion with the driving gear 61. I the respective rod 95 or 96 is elevated, and is secured in the elevated position tol maintain the respective pinion in engagement with the driving gear until the carriage is moved to engage the respective travel limit lugs 85 or 86. This automatically releases the tilting rod 95 or 96 from engagement with the latching tooth and tilts the shaft 64; in an opposite direction to remove thedrivmg pimon from' engagement wlth the.

driving gear,but does not move theother driving pinion lnto engagement with the drlving gear. 'ThlS semi-automatic arrange- Simultaneously. therewith nent permits the operator to position a new 7 piece of stock at one end of the movement and to manual y or automatically remove the stock from the spindles when the car riage is at the other end of the movement. If desired, the respective reversing pinion may be replaced by suitable means such that the usual quick return? movement of said carriage may be secured.

Means are providedfor V automatically braking the driving gear 61 after the bevel gears 62 and 63 have been removed from en-.

gagement therewith. Saidmeans comprises a brake shoe 100, the same being suitably connected to a brake 'rod 101, one end of which is pivoted to a rocking lever .02 pivoted to the bed 21, and the opposite end.

of which is secured to an actuating rod 103, the opposite end ofwhich in turn is suitably connected to one end ofthe transverse rod 90 which, it will be remembered,

has its other end connected to the tripping rods 92 and is operated by the stop lug 85, through, the medium of the sliding rod in turn is edaoted to actuate e brake shoe the travel liini' lugs 85 and 86 is actuated by the carriage 22, the respective levers Y9 and 71 will he oppositely tilted to disengage the respective pinion 63 or 62, end simultaneously therewith the respective brake shoes 100 end 106 will be applied to the periphery of the driving gear 61 to stop the rotation thereof, 1n the present instance suitable spring means 107 have one end s cured to the transverse rods 90 end 91 and the opposite ends secured to the bed The means for shaping the steel; 10., while the some is being rnoved longitudinally upon the bed 21, comprises, in the present instance, three cutting members 110 111 l 112, rotatably mounted upon the shafts 11o, 11 and 115, the latter being rotetet by means of belt pull ys 116, 11? end 118, or any other suitable rotating means. The belt pulleys are preferably employed since each 0" said cutters 110, 111 and 113 is indepei -.ently mounted upon the bed 21 and is also adjust-ably mounted thereon. As shown in Fig. 1, the respective cutter cnr- 119 and 120, supporting the cutters 111 112, are slidebly supported upon respective carriages 121 and 122 and secured i edjusteble position by suitable bolt niesns 1e carriage members 121 end 122, i, vertically od iustuble upon and "he bed 21 by means '2 bolts ii in slots formed in and upon locks 126 upon the bed 21.

one; 112 is thus rigidly sup- '"ioneo a scent e ch instance the cutter he stool: 10 before the or 'tes thereon. is shown in the cutters111 and 112 form r 1 .ces of the stocl 10, the cutter 111 orming the ten-on 13 and the slot 1 1, wh'

112 cuts the face ."ucent tie the cuttr tenon and forms tl e tenon thereon. .ine r d with the he cutters and 112 a e provid er notches LT and 128 respectively, and t is provided with the cutting porto lorn the slot 1% in the stock 10. The cittes 111 and 11.2 cut the adjueent face in the manner describes, While the cutter 110 cuts the other two opposite adjacent feces of sQid stock face 10.

1n the present instance the cutter 10 is T stantielly pr vided with u V-shnped cutng edge 1 30 which substantially cuts the we opposite odjecent faces of the base stock to term 2, square corner, substantially nod 21 and is indegendentlyas shown in ii 2 and 3. W hen it is desired to cut 110, 111 end 112 rosy be replaced with other suitable :tornied cutters.

In the present instance the cutter 110, the shaft 113 and pulley 116, in addi ion to being supported in a manner similar to the corrieges 119 to 122inclusive, is also provided with a pivotal support 131, the some being rigid with the carriage 132. The carriage 1-32 is longitudinally adjustable upon the carriage 3, which letter carriage is verticelly adjustable upon the bed 21 in substantially the manner l heretofore described. A flange base plate 134 is pivotelly supported upon the pivot shaft 181 and is 111tl31- teined in the adjusted position by means such as e C-clainp portion 135, herein shown formed integral with the end or the cer- 132. Qclarnp 135 is provided with a pair of axially olined and oppositely extending clamping bolts 136 and 137, which extend through said clamping members toward the flange plate 134 to engage thereon. Suitable nut ineens'138 and 139 loch seid bolts in the clamping position to rigidly clamp the hose plate 134 and the supporting 1 10 in the adjusted 1 osition.

The cutters 110, 1 and 112, as shown clearly 4;, are rotnteble and substen tielly surround suit stock base 10. idince suid cutters are adjustebly and independ ently mounted in three different transverse planes upon the bed of the machine, and since the cutters may be removed and other are substitutedtherefor which will cut stool: base 10 in any desired manner, 111l1l11 will be able to receive stock any desired manner. the cutters have suitably fashioned 10 and the work supporting curment with the completed hose stock 10.

It will be noted from Fig. l that the head and tail stocks extend upwardly and outwerdly so that when the completed stock 10 is released, the some will fell into a suitable receptacle without falling upon the niachine. V V

The machine is substantially semi-entoeat ren "e in size and fashion the.

has moved to the end of its travel matic in its action, since it is desired to have the operator carefully position the stock, and then after the same has been fashioned by the cutters carefully remove the same. F or this reason the operation of throwing the mesh of the gears 62 and 63 into mesh with the driving gear 61 is manually performed.

While the invention has been described in detail it will be understood that the same is not to be limited thereby since many modifications thereof, a few of which have been suggested, will suggest themselves to those skilled in the art, and all or" said modifications are considered to be within the purview of the foregoing invention, the scope of which is indicated by the following claims. V

The invention claimed is:

1. In a machine for working wood and the like, the combination With a supporting bed, and a carriage mounted thereon, of a plurality of parallelogram centering means supported upon said bed and movable in parallel planes transverse to said bed and carriage, and a single means for moving all or" said parallelogram centering means into the centering position adjacent said carriage.

2. In a machine for working wood and the like, the combination with a supporting bed, and a carriage mounted thereon, of a pluparallel planes transverse to said bed and carriage, a single means for-moving all of said parallelogram center ng means into the centering position adjacent said carriage, and means for normally maintaining said centering means in the, non-centering position. r y

3. In a machine for workingwood and the like the combination with a supporting bed and a work supporting carriage slidably mounted thereon, of work supporting means upon said carriage including ahead j stock and a tail stock and an elongated spin- 7 dle associated with said head stock and at least equal in length to the length of the work, and a plurality of cutters mounted adjacent said carriage and between the stocks and adapted to fashion substantially. the entire circumference of the work when the carriage moves from one position upon passed through all of said cutters and the work has also passed therethrough.

In witness whereof, Ifhave hereunto as fixed my signature.

WILLIAM J. KARMIBE- 

